Draft-equalizer.



No. 841,930. PATENTED JAN. 22, 1907.

w. R. GAMPBELLL DRAFT EQUALIZER.

I APPLICATION FILED 00125. 1906.

ATTORNEY:

THE NORRIS PETERS 00., wnsnma-rou, n. c.

WILLIAM R. CAMPBELL, OF LITTLE YORK, ILLINOIS.

DRAFT-EQUALIZER.

Specification of Letters Patent.

Patented Jan. 22, 1907.

Application filed October 25, 1906. Serial No. 340,562.

To all whom, it may concern.-

a citizen of the United States, residing at Little York, in the countyof Warren and State of Illinois, have invented a new and usefulDraft-Equalizer, of which the following is a specification.

The present invention has relation to draftequalizers, and has for itsprimary object to provide a device of that character having im-.

proved means for equalizing inequalities, due to any cause whatsoever,tending to produce side draft; and to this end the invention, broadlystated, consists in a single equalizingbar pivoted or swiveledunequidistant from its ends to the ordinary vehicle-tongue and providedat one of its ends with a pair of compensating or equipollent arms.Subsidiary objects will hereinafter appear.

It further consists in the features of novelty that are hereinafterdescribed with reference to the accompanying drawings, which are made apart hereof, and in which- Figure 1 is a plan embodying my invention andshowing a portion of a wagon-tongue to which it is attached; Fig. 2, asimilar view, enlarged, showing one movement of the compensating arms;and Fig. 3, an end view.

Reference being now had to the drawings, in which like numerals refer tocorresponding parts in the several figures, 1 represents my improvedequalizing-bar fulcrumed in an ordinary manner to a tongue 2 by a pin 3.For a. purpose hereinafter described the bar is broadest at its pivotalpoint 5 and slightly tapered toward its short end 4. An ordinaryswingletree 7 is secured in any preferred manner to the longer arm 6 ofsaid bar. Transversely of the shorter arm 4 is a strap 8, to which it ispivoted centrally thereof. At the rear side of the end 4 is acompensating arm 9, which is also pivoted to the strap 8. Forwardly ofthe end 4 is another compensating arm 10, rigidly fixed by a pin 11 orin any other manner to the strap 8. The arms 9 and 10 are in contact attheir outer ends with the end 4 of the bar and are tapered to such anextent that their inner ends are spaced some distance from the portion 5of the equalizer-bar, which is broadest at that point for the purpose ofstrength, the draft of the wagon, fertilizer-distributer, or othervehicle being there applied. An ordinary doubletree 12 is swiveled orotherwise attached to the arm 10, as shown. The inner or distal portionsof the arms 9 and 10 are held firmly Be it known that 1, WILLIAM R.CAMPBELL, I

and securely together by a hammer-strap 13. It will be evident that thepoint of equalization will be that which I have marked 14, and that whenthe team of draft-animals hitched to the doubletree on the shorter arm 4moves forwardly of the one hitched to the longer arm 6 the arm 10 will,by reason of its being rigidly fixed to the strap 8' and its inner endby the hammer-strap to the arm 9, be moved to the dot-line position atFig. 2 and carry with it said last-named bar. Their positions will bereversed-that is, they will move rearwardlywhen the single draft-animalis in advance.

' The advantages of the invention have been partly set forth in thestatement of the purposes and objects thereof and the detail descriptionof the mechanism; but, concisely stated, the leading benefits securedthereby are as follows: First, the equalization is absolute and perfect;second, a single equalizing bar only is employed; third, thecompensating arms relieve a great portion of the strain when a suddenjerk is given either by the team or by the single draft-animal; fourth,because of its simplicity the device is not only strong and durable, butis, extremely economical of manufacture; fifth, by turning it upsidedown it is reversible; sixth, it may be readily manipulated, even by anovice; seventh, the several parts are readily adjustable to anypositions desired.

I do not wish to be confined to the exact construction shown, as othermeans than those illustrated may be employed for connecting theequalizer-bar and the compensating arms, other means than a hammer-strapmay be used for connecting the inner ends of the latter, the points ofsecurement may be elsewhere than where shown, and the arrangement anddisposition of the several parts may be altered; but

What I do claim is' 1. A draft-equalizer including a singleequalizer-bar, a strap, said bar pivoted therer to, a compensating armalso pivoted. thereto, and a second compensating arm, the latter fixedto said strap.

2. A draft-equalizer including a single equalizer-bar, a strap, said barpivoted thereto, a compensating arm also pivoted thereto, a secondcompensating arm, the latter fixed to said strap, and means forconnecting the distal ends of said arms.

ICC

3. A draft-equalizer including a single equalizer-bar, a strap, said barpivoted thereto, a second compensating arm, the latter fixed to saidstrap, means for connecting the distal ends of said arms, a doubletreesecured to said last-named arm and a swingletree to said bar.

' 4. A draft-equalizer including a single equalizer-bar, compensatingarms at one end thereof, a strap to which said bar and arms are secured,and means ,for connecting the distal ends of said arms.

5. The combination With a vehicle-tongue, of a single equalizer-barfulcrumed thereon transversely thereof, compensating arms at one end ofsaid bar and lying along its sides, a strap to which said bar and armsare secured, a hammer-strap connecting the distal ends of said arms, adoubletree secured to one of them, and a swingletree to said bar.

6. In a draft-equalizer, a single bar comprising a longer and a shorterarm, compensating arms at the sides of the shorter arm, and means foruniting said bar and arms.

In Witness whereof 1 hereto subscribe my name in presence of twoWitnesses.

WILLIAM R. CAMPBELL.

W itnesses L. F. VVERTMAN, L. M. RICHARDS.

